Continuous Ash Emissions during the 2014-2015 Activity at Nakadake First Crater, Aso Volcano

Abstract

 Following the 1988-1995 major activity, a series of magmatic eruptions began on November 25, 2014 at the Nakadake first crater of Aso Volcano in central Kyushu, southwestern Japan, continuing until May 3, 2015. The 2014-2015 eruptive activity at Nakadake first crater was dominated by continuous ash emissions from a vent 20-30 m across formed near the center of the crater, although strombolian eruptions were recognized immediately after the activity began.

(Photograph & Explanation: Yasuo MIYABUCHI; January 13, 2015)